gene_name = "TGFB1";
number_of_characters = 50;
source("extract.five.utr.sequence.R");
source("get_up_seq.R");
gene = get.up.seq(gene_name,number_of_characters);
gene_string = gene[[1]][[4]];
gene_string = paste(unlist(gene_string),collapse="");
print(gene_string);